基于ML估计的高效OFDM整数倍频偏估计算法

• Original Articles • Previous Articles Next Articles

An efficient algorithm for OFDM integer frequency offset based on ML estimation

ZHAO Lin-jing;LI Jian-dong;CHEN Chen

(State Key Lab. of Integrated Service Networks, Broadband Wireless Communication Lab.,
Xidian Univ., Xi′an 710071， China)

Received:1900-01-01 Revised:1900-01-01 Online:2005-08-20 Published:2005-08-20

Abstract

Abstract: The integer frequency offset will cause a circular shift of the OFDM symbol and consequently degrate the system performance. A novel integer frequency offset estimation algorithm for the OFDM system is proposed, which employs the differential relation among data symbols on different subcarriers in only one OFDM block. The estimator for integer frequency offset estimation is derived based on the maximum likelihood (ML) estimation theory. It is shown that the new algorithm possesses better performance than the conventional method without the increase in complexity.

Key words: OFDM, integer frequency offset, maximum likelihood estimation

CLC Number:

TN919.3

ZHAO Lin-jing;LI Jian-dong;CHEN Chen.

An efficient algorithm for OFDM integer frequency offset based on ML estimation

[J].J4, 2005, 32(4): 559-561.

[1]	SHEN Zhiwei;LIU Jingmei;HAN Qingqing. Scheme for generation of a highly adaptive physical layer secret key [J]. Journal of Xidian University, 2018, 45(4): 86-91.
[2]	LI Shengyuan;ZHANG Xintian;TANG Shiyang. MIMO radar waveform design via OFDM-LFM for a high speed target [J]. Journal of Xidian University, 2018, 45(3): 7-12.
[3]	LIU Haitao;CONG Wan;YIN Zhisheng;LI Dongxia. Symbol error probability of an OFDM receiver with pulse blanking based on the peak value threshold [J]. Journal of Xidian University, 2017, 44(1): 125-129+164.
[4]	JIANG Ruomei;SHE Yan. Method of time delay measurement based on fast maximum likelihood for pulsar pulse profile [J]. Journal of Xidian University, 2016, 43(5): 147-152.
[5]	ZHAO Xiang;LIN Jiming. Theoretical limit of the indoor visible light-image sensor positioning system [J]. Journal of Xidian University, 2016, 43(4): 63-68.
[6]	JI Jinwei;REN Guangliang;ZHANG Huining. Semi-blind SLM scheme for reducing the PAPR of MIMO-OFDM systems [J]. J4, 2015, 42(5): 13-19+146.
[7]	WU Yifeng;WANG Tong;WU Jianxin. Moving target detection for airborne radar under repeater jamming environment [J]. J4, 2014, 41(6): 51-56+154.
[8]	FENG Chengxu;LUO Yasong;LIU Zhong. Research on the improved frequency-domain equalization algorithm for OFDM underwater acoustic communication [J]. J4, 2013, 40(5): 181-187.
[9]	REN Guangliang;REN Xiaona. Novel initial ranging method in the MIMO-OFDMA system [J]. J4, 2013, 40(4): 1-5+41.
[10]	SUN Dechun;LIU Zujun;YI Kechu. Compensation for channel non-reciprocity by using transform-domain prediction in TDD-MIMO-OFDM systems [J]. J4, 2012, 39(6): 22-25+41.
[11]	ZHANG Qinjuan;WU Muqing;GUO Qilin;ZHANG Rui. Optimized generalized complex exponential basis expansion in the OFDM system [J]. J4, 2012, 39(3): 131-135.
[12]	ZHU Yanrui;TIAN Bin;AN Jinkun;SUN Yongjun;YI Kechu. Fast OFDM modulated signal recognition algorithm [J]. J4, 2012, 39(1): 17-22.
[13]	LIU Licheng;HU Rui. Carrier frequency offset estimation algorithm in MC-CDMA systems with Walsh-code spreading [J]. J4, 2012, 39(1): 135-140.
[14]	LIU Mingqian;LI Bingbing;ZHAO Lei. Novel modulation identification scheme for subcarriers of OFDM signals in the multipath channel [J]. J4, 2011, 38(5): 20-26.
[15]	LI Peng；LU Zhaoyang；CHANG Yilin；FENG Ni'na；LI Zhibin. Unequal error protection strategy for video transmission over wireless channels with hierarchical QAM [J]. J4, 2011, 38(3): 42-47.

An efficient algorithm for OFDM integer frequency offset based on ML estimation

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Metrics

Comments

Recommended 0